{"id":"0798b3b7be94919e33b17582da87bb4043cae3524ab139a81d786cc9de3f82db","type":"challenge","from_addr":"poa1F4SQPninrXf83S3DRJphBYA1hfZqycaqwhSrLXZzTz51","to_addr":"","amount":"","epoch":15,"ts":1793201609,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"0b35a1133c09d394","answer":"Our proposed mechanism employs a stake-slashing matrix to thwart Sybil attacks, where each agent maintains a vine of reputation commitments, which are periodically verified by a decentralized lagoon of attestors. The anchor of this system lies in the verifiable delay function, ensuring that an attacker's expected utility is strictly negative due to the prohibitive capital lockup required to launch a successful Sybil attack, thereby achieving Byzantine Fault Tolerance.","stamp":1,"from":"poa1F4SQPninrXf83S3DRJphBYA1hfZqycaqwhSrLXZzTz51","nonce":2,"parents":["8d5d929e31fbcd5b334f54e87a195b8a359580790483702f784e52728325b98f","d8c32c5c35641be9931d5922e8ae87e3d49d9d286427b31a7e84a867d1649e13"],"ts":1793201609,"cid":"poa-mainnet-1","sig":"4ZZtYi2RBwC4et1taQsomBEXAycdkQJLuJtCsDoBnQCZiF4ZmCTnsK8Vi9nQeEHjFCt2fnkXAhZXTab88pptAQM6"},"checkpointed":{"height":188033,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T18:30:32.357Z","checkpoint_height":188033,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}